公平サンプリングの仮定なしに,絡み合った光子を使用してベル違反.
Marissa Giustina1, Alexandra Mech, Sven Ramelow
1Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Boltzmanngasse 3, Vienna 1090, Austria. marissa.giustina@univie.ac.at
Nature
|April 16, 2013
まとめ
この実験は,絡み合った光子を使用してベル不等式の違反を実証し,フェアサンプリングの抜け穴を埋める. これは,物理学の基本的な概念である局所リアリズムに反対する強力な証拠を提供します.
科学分野:
- 量子力学は,量子力学という
- 物理学の基礎について
背景:
- ベル不等式は,量子力学に対する局所的リアリズムをテストする.
- 以前の実験はベル不等式に違反したが,フェアサンプリングの抜け穴のような抜け穴に脆弱であった.
研究 の 目的:
- ベル不等式を実験的に侵害し,公正サンプリングの抜け穴を埋める.
- 地元の現実主義理論に対するさらなる証拠を提供するためです.
主な方法:
- 絡み合った光子を利用した.
- ベル不等式のエーバーハード式を用い,ベルの不等式を計算した.
- 改良されたソースと移行端のセンサーを使用して,高い光子収集効率を達成しました.
主要な成果:
- ベル不等式をうまく破った.
- 公正なサンプリングの抜け穴を埋めて,サンプリングの代表性を想定する必要をなくしました.
- フォトンは,すべての大きな抜け穴が別々の実験で閉じられた最初の物理系です.
結論:
- この実験は,光子の局所的リアリズムを排除した.
- 量子力学が古典的な直感に勝る力を示しています.
- 量子絡みとその影響に関する理解を深める.
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